James Otto, M.D.
Internal Medicine Physician · Chicago, IL
James Otto, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1295835452, issued on Sep 25, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- James Otto
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R1F06 MO
Self-reported in NPPES; status is on the state search - Practice location
- 333 E Huron St, Chicago, IL 60611
- Phone
- (312) 469-4136
- Enumerated
- Sep 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (312) 469-2134
- Entity
- Type 1 · individual
Also registered at 333 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Otto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
94 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Pravastatin Sodium13 claims
- Finasteride12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $16.11
1 payment: food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 2,867 in Chicago → All 7,238 in Illinois → Every provider in Chicago →
Other internal medicine physician records in Illinois
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- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Elmer Abbo, MDBurr Ridge, IL1710048541
- Paul Abbo, M.D.River Forest, IL1083693378
Common questions
What is James Otto, M.D.'s NPI number?
James Otto, M.D.'s National Provider Identifier (NPI) is 1295835452, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Otto, M.D. located?
The NPPES record lists a practice address at 333 E Huron St, Chicago, IL, 60611. Phone: (312) 469-4136. Providers update this record themselves, so call before visiting.
How can I verify James Otto, M.D.'s license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Otto, M.D. prescribe under Medicare Part D?
In 2024, James Otto, M.D. had 94 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.